Tunnels

Ensuring efficient stormwater drainage for the city of Jeddah

This centralized underground transport hub opens up development of social venues and green spaces.

The 6.8-mile-long tunnel project — the largest ever for Metropolitan St. Louis Sewer District (MSD) — will improve water quality within the Meramec River watershed and help ensure regulatory compliance.

The project will help improve the water quality and coastal environment within the Western Bays of Long Island by upgrading existing wastewater management infrastructure.

The complex and highly successful combined sewer overflow (CSO) tunnel projects were key infrastructure components of the City of Portland, Oregon’s efforts to improve the water quality of the Willamette River.

The 56km-long Tuen Ma line – now the longest line of Hong Kong’s MTR network connecting the former West Rail Line and Ma On Shan Line with six new stations planned under the strategic Shatin-to-Central Link project – greatly enhances the city’s railway network coverage.

WSP contributed its experience to the largest tunnel project in America part of the megaproject of 18 tunnels, 30 bridges and 17 kilometers of open-air roads in Colombia.

We helped transformed the key interchange station in Hong Kong’s MTR network to accommodate its expansion plan and enhance the city’s connectivity.

Light rail project links existing transit lines and provides single ride access to and through LA’s downtown core.

The tram network in Stockholm is undergoing a major expansion. Tramway City is expected to carry 63,000 passengers per day in 2030 and will supply the new Royal Seaport district with efficient and environmentally friendly public transport.

MTR South Island Line provides a much-needed alternative mode of transport to the 350,000 residents living in the Southern District, who had faced daily traffic congestion to and from the downtown area of Hong Kong. 

 WSP is contributing in the design of Line 7 of the Santiago Metro, both in its engineering and its socio-environmental planning, contributing the company's international experience in these types of initiatives.